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Northwest Africa 12643 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12643 This is an OFFICIAL meteorite name. Abbreviation: NWA 12643 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 2.6 kg | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 340 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 31 May 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12643 (NWA 12643) (Northwest Africa) Purchased: 2019 Feb Classification: Lunar meteorite (feldspathic breccia) History: Purchased in February 2019 by Darryl Pitt from a Mauritanian dealer. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of angular mineral grains of predominantly anorthite together with olivine, low-Ca pyroxene, augite, Ti-chromite and minor secondary barite. Geochemistry: Plagioclase (An96.4-96.6Or0.1, N = 2), olivine (Fa25.4-25.8, FeO/MnO = 92-93, N = 2), low-Ca pyroxene (Fs20.6-20.9Wo4.3-3.5, FeO/MnO = 51-52, N = 2), augite (Fs10.5-10.6Wo42.3-41.6, FeO/MnO = 33-35, N = 2). Classification: Lunar (feldspathic breccia). Specimens: 20.4 g including a polished endcut and a polished epoxy mount at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
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Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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